The following reply was made to PR port-xen/33162; it has been noted by GNATS.

From: Manuel Bouyer <bouyer@antioche.eu.org>
To: Pavel Cahyna <pavel.cahyna@st.mff.cuni.cz>,
	Jeff Rizzo <riz@netbsd.org>, gnats-bugs@netbsd.org,
	port-xen@netbsd.org
Cc: 
Subject: Re: port-xen/33162 [Re: FAST_IPSEC panics domU kernel]
Date: Wed, 29 Mar 2006 12:33:56 +0200

 On Wed, Mar 29, 2006 at 12:16:47PM +0200, Pavel Cahyna wrote:
 > I think netipsec is wrong - it is using m_copyback, but can't be really
 > sure that the mbuf is not shared.
 
 Yes. Xen is good for catching this kind of abuse, because the may not even
 be mapped read/write :)
 
 -- 
 Manuel Bouyer <bouyer@antioche.eu.org>
      NetBSD: 26 ans d'experience feront toujours la difference
 --